GB850055A - Circuit arrangement for the drive of a step-by-step selector such as used in telephone systems - Google Patents
Circuit arrangement for the drive of a step-by-step selector such as used in telephone systemsInfo
- Publication number
- GB850055A GB850055A GB2668557A GB2668557A GB850055A GB 850055 A GB850055 A GB 850055A GB 2668557 A GB2668557 A GB 2668557A GB 2668557 A GB2668557 A GB 2668557A GB 850055 A GB850055 A GB 850055A
- Authority
- GB
- United Kingdom
- Prior art keywords
- drive
- winding
- circuit arrangement
- telephone systems
- arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 238000004804 winding Methods 0.000 abstract 3
- 230000003993 interaction Effects 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H67/00—Electrically-operated selector switches
- H01H67/02—Multi-position wiper switches
- H01H67/04—Multi-position wiper switches having wipers movable only in one direction for purpose of selection
- H01H67/06—Rotary switches, i.e. having angularly movable wipers
Landscapes
- Structure Of Telephone Exchanges (AREA)
Abstract
850,055. Automatic exchange systems. TESLA NARODNI PODNIK. Aug. 23, 1957, No. 26685/57. Class 40 (4). In an arrangement for stepping a switch by interaction of its magnet M and a relay R, the latter in operating operates M which connects an opposing winding R2 in series with the main winding R1 of the relay R so that the latter releases immediately so completing a re-energizing circuit for R1. However, R is rendered slow to operate by the short circuit of its winding R2 until M releases, thereby enabling the release of M to take place before R is reoperated. A plurality of magnets M, M<SP>1</SP> may be stepped in synchronism by this arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2668557A GB850055A (en) | 1957-08-23 | 1957-08-23 | Circuit arrangement for the drive of a step-by-step selector such as used in telephone systems |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2668557A GB850055A (en) | 1957-08-23 | 1957-08-23 | Circuit arrangement for the drive of a step-by-step selector such as used in telephone systems |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB850055A true GB850055A (en) | 1960-09-28 |
Family
ID=10247569
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2668557A Expired GB850055A (en) | 1957-08-23 | 1957-08-23 | Circuit arrangement for the drive of a step-by-step selector such as used in telephone systems |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB850055A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2319958C1 (en) * | 2007-01-23 | 2008-03-20 | Государственное образовательное учреждение высшего профессионального образования Воронежская государственная технологическая академия | Method of determining microconcentrations of ammonia vapors in air |
-
1957
- 1957-08-23 GB GB2668557A patent/GB850055A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2319958C1 (en) * | 2007-01-23 | 2008-03-20 | Государственное образовательное учреждение высшего профессионального образования Воронежская государственная технологическая академия | Method of determining microconcentrations of ammonia vapors in air |
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